The Integrated Control Strategy for Interval Type-2 Fuzzy Logic Power System Stabilizer (IT2FLPSS) and Compact Digital Fuzzy Automatic Voltage Regulator (CDF-AVR) in Electrical Power System

The Integrated Control Strategy for Interval Type-2 Fuzzy Logic Power System Stabilizer (IT2FLPSS) and Compact Digital Fuzzy Automatic Voltage Regulator (CDF-AVR) in Electrical Power System

Manoj Kumar Sharma R.P. Pathak Manoj Kumar Jha M.F. Qureshi

NIT Raipur, Chattisgarh, India

Naveen K.T.C. College Salni, Janjgir-Champa, Chattisgarh, India

Department of Electrical Engg., DTE, Raipur, Chattisgarh, India

Corresponding Author Email: 
mfq_pro@rediffmail.com
Page: 
186-192
|
DOI: 
https://doi.org/10.18280/mmc_a.910404
Received: 
20 May 2018
|
Accepted: 
15 September 2018
|
Published: 
31 December 2018
| Citation

OPEN ACCESS

Abstract: 

The measure for increasing stability is to improve the main circuits by raising the voltage or employing series capacitors in power transmission lines, but the generator exciter control method, which makes use of a compact digital fuzzy automatic voltage regulator (CDF-AVR) and Interval Type-2 Fuzzy Logic Power System Stabilizer (IT2FLPSS), is attracting attention because of its high cost advantage. In this paper the integrated Control strategy for Interval Type-2 Fuzzy Logic Power System Stabilizer (IT2FLPSS) and Compact Digital Fuzzy Automatic Voltage Regulator (CDF-AVR) in Electrical Power System is proposed for Generator Exciter Control. Voltage stability and power quality of the electrical systems depend on proper operation of the Automatic Voltage Regulators (AVR) of generators. Now a days, design technology of the AVRs is being broadly improved. According to wide range operating conditions of the generators and loads, the digital fuzzy AVRs are going to be the modern type of regulators. The previous researches are focused mostly on the balanced loads with minor attention to the unbalanced loads and voltages that are very common for the generating sets embedded in distribution systems.

This work aims to develop a controller based on interval Type-2 fuzzy logic to simulate a compact digital fuzzy automatic voltage regulator (CDF-AVR) in transient stability power system analysis. In this study, performances of a simulated compact digital fuzzy AVR evaluated for a wide range of unbalanced loads operating conditions. It was simulated a one machine control to check if the integrated control operation of interval Type-2 fuzzy logic Power System Stabilizer (IT2FLPSS) and CDF-AVR was possible. After which results were compared to the results obtained with the conventional AVR (CAVR) itself.

Keywords: 

interval Type-2 fuzzy logic power system stabilizer (IT2FLPSS), compact digital fuzzy automatic voltage regulator (CDF-AVR), one synchronous machine system, unbalanced loads, conventional AVR(CAVR)

1. Introduction
2. Power System Stability and Exciter Control
3. Location of CDF-AVR in Power Plant
4. Compact Digital Automatic Voltage Regulator (CDF-AVR) and Interval Type-2 Fuzzy Logic Power System Stabilizer (IT2FLPSS)
5. Modeling and Simulation
6. Simulation Results
7. Conclusion
  References

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